ZDI-20-957: Advantech WebAccess/HMI Designer PM3 File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Advantech WebAccess/HMI Designer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PM3 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-20-957?
The severity of ZDI-20-957 is classified as high due to its potential for information disclosure by remote attackers.
How do I fix ZDI-20-957?
To fix ZDI-20-957, update the Advantech WebAccess/HMI Designer software to the latest version that addresses this vulnerability.
What types of attacks exploit ZDI-20-957?
ZDI-20-957 can be exploited through user interaction, requiring the target to visit a malicious page or open a malicious file.
Who is affected by ZDI-20-957?
Only installations of Advantech WebAccess/HMI Designer are affected by the ZDI-20-957 vulnerability.
What kind of information can be disclosed by exploiting ZDI-20-957?
Exploitation of ZDI-20-957 may lead to the disclosure of sensitive information from affected installations.